Re: syntax sugar for conditional check
От | Jim Nasby |
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Тема | Re: syntax sugar for conditional check |
Дата | |
Msg-id | 56FEB3BD.9070305@BlueTreble.com обсуждение исходный текст |
Ответ на | syntax sugar for conditional check (Alexander Ostrow <aj@epcylon.com>) |
Ответы |
Re: syntax sugar for conditional check
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Список | pgsql-hackers |
On 3/31/16 12:19 PM, Alexander Ostrow wrote: > Hello, > > I thought it would be cool to have conditional check syntax, which gets > converted to simple check constraint syntax. > > Here’s a gist: > > https://gist.github.com/aj0strow/5a07f2ddcad324c4dac2c4095c821999 > > It’s just sugar, but i think it would make check constraints easier to > read, and easier to write without backwards boolean logic. Rather than this, I think an exclusive-or operator would be a lot more useful. The only difficulty I run into with CHECK constaints is when I want to ensure that only ONE condition is true. -- Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX Experts in Analytics, Data Architecture and PostgreSQL Data in Trouble? Get it in Treble! http://BlueTreble.com
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